CVE-2021-35464

Name: CVE-2021-35464
Creator: NVD / NIST
Published: 2021-07-22T18:15:23.247+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10Actively ExploitedEPSS 100.00%

Last modified Jun 17, 2026

CVE-2021-35464 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. ForgeRock AM server before 7.0 has a Java deserialization vulnerability in the jato.pageSession parameter on multiple pages. The exploitation does not require authentication, and remote code execution can be triggered by sending a single crafted /ccversion/* request to the server. CISA has confirmed active exploitation in the wild. EPSS estimates a 100.00% chance of exploitation in the next 30 days.

Description

ForgeRock AM server before 7.0 has a Java deserialization vulnerability in the jato.pageSession parameter on multiple pages. The exploitation does not require authentication, and remote code execution can be triggered by sending a single crafted /ccversion/* request to the server. The vulnerability exists due to the usage of Sun ONE Application Framework (JATO) found in versions of Java 8 or earlier

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

100.00%

100.0th percentile

Probability of exploitation in the next 30 days. Learn more

Exploitation Status

This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by Nov 17, 2021.

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Forgerock	Access Management	< 6.5.4
Forgerock	Openam	>= 9.0.0, < 14.6.3

References

http://packetstormsecurity.com/files/163486/ForgeRock-OpenAM-Jato-Java-Deserialization.htmlExploit, Third Party Advisory, VDB Entry
http://packetstormsecurity.com/files/163525/ForgeRock-Access-Manager-OpenAM-14.6.3-Remote-Code-Execution.htmlExploit, Third Party Advisory, VDB Entry
https://backstage.forgerock.com/knowledge/kb/article/a47894244Exploit, Permissions Required, Vendor Advisory
https://bugster.forgerock.orgBroken Link
http://packetstormsecurity.com/files/163486/ForgeRock-OpenAM-Jato-Java-Deserialization.htmlExploit, Third Party Advisory, VDB Entry
http://packetstormsecurity.com/files/163525/ForgeRock-Access-Manager-OpenAM-14.6.3-Remote-Code-Execution.htmlExploit, Third Party Advisory, VDB Entry
https://backstage.forgerock.com/knowledge/kb/article/a47894244Exploit, Permissions Required, Vendor Advisory
https://bugster.forgerock.orgBroken Link
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-35464US Government Resource

Timeline

Published: Jul 22, 2021
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2021-35464?

How severe is CVE-2021-35464?

CVE-2021-35464 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 100.00% probability of exploitation in the next 30 days. This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog.

How do I fix CVE-2021-35464?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-35464?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST